I think all his time in Birmingham faded his orange. He had (and still has) a great angle before his show went national on ESPN. It was Alabama/Auburn discussion 365 days a year, and he would lean Alabama when he had to because Birmingham is an Alabama city, which would really rile up the Auburn fans who don't like his pretense of being neutral. He was like "Mean" Gene Okerlund standing between Hulk Hogan and Macho Man with a microphone in his hand.
Until very recently, you could listen to his show for hours and never know that he is from the State of Tennessee and is a UT alum. Never goes out of his way to mention it.